Form-Fitting, Large-Area Sensor Mounting for Obstacle Detection

arXiv cs.RO / 3/26/2026

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Key Points

  • The paper presents a low-cost technique for mounting obstacle-detection sensors on robot links to achieve large-area sensing coverage without requiring pre-use calibration of each sensor’s pose.

Abstract

We introduce a low-cost method for mounting sensors onto robot links for large-area sensing coverage that does not require the sensor's positions or orientations to be calibrated before use. Using computer aided design (CAD), a robot skin covering, or skin unit, can be procedurally generated to fit around a nondevelopable surface, a 3D surface that cannot be flattened into a 2D plane without distortion, of a robot. The skin unit embeds mounts for printed circuit boards of any size to keep sensors in fixed and known locations. We demonstrate our method by constructing point cloud images of obstacles within the proximity of a Franka Research 3 robot's operational environment using an array of time of flight (ToF) imagers mounted on a printed skin unit and attached to the robot arm.